ME
Mary Ellis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Dorchester, Maryland
Our Model Tree links this Mary Ellis across the 1920, 1930 and 1940 US Censuses in Dorchester, Maryland (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 5-person household.
Age 60
b. ~1870
Female
Head
Born: Maryland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Dorchester, Maryland |
| Surname | Ellis |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Lumber Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 300 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Taylors Island 4 Election |
| Est. Birth Year | ~1870 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lucy Ellis | Daughter | — | 23 | ~1907 |
| Mary Ellis | Head | — | 60 | ~1870 |
| Isaac Ellis | Son | — | 25 | ~1905 |
| Clarence Ellis | Son | — | 20 | ~1910 |
| George Ellis | Son | — | 28 | ~1902 |
Census Appearances
1920
Dorchester, Maryland
Head, age 50
Dorchester, Maryland · implied b. ~1870 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | Mary J |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Dorchester, Maryland
Head, age 60
Dorchester, Maryland · implied b. ~1870 — 5 household members
| Surname | Ellis |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Lumber Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 300 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Dorchester-County, Maryland
Other, age 72
Dorchester-County, Maryland · implied b. ~1868 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | Mary J. |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | Black |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 4 |
| 1935 Residence (County) | Dorchester |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Ellis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Ellis
Head · 1930 · age 60 · b. ~1870 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Dorchester, Maryland
Open full size
1930 US Federal Census — Dorchester, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus873unit:0648)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Emma Brooks | 45 | Head | — | Maryland |
| 52 | Samuel Brooks | 22 | Son | Laborer | Maryland |
| 53 | Annie Brooks | 20 | Daughter | — | Maryland |
| 54 | Ruth H. Brooks | 18 | Daughter | — | Maryland |
| 55 | Mary J. Ellis THIS PERSON | 60 | Head | Laborer | Maryland |
| 56 | George W. Ellis | 28 | Son | — | Maryland |
| 57 | Isaac J. Ellis | 25 | Son | — | Maryland |
| 58 | Lucy Ellis | 23 | Daughter | — | Maryland |
| 59 | Clarence T. Ellis | 20 | Son | — | Maryland |
| 60 | Samuel Wheatly | 55 | Head | — | Maryland |
| 61 | Lena M. Wheatly | 51 | Wife | Laborer | Maryland |
| 62 | Lifford Wheatly | 25 | Son | — | Maryland |
| 63 | John D. Wheatly | 22 | Son | — | Maryland |
| 64 | Carrie Wheatly | 18 | Daughter | — | Maryland |
| 65 | Lillian Sarah Wheatly | 16 | Wife | — | Maryland |
| 66 | Matthew M. Ellis | 55 | Head | Laborer | Maryland |
| 67 | Maggie M. Ellis | 52 | Wife | — | Maryland |
| 68 | Wm. H. Ellis | 22 | Son | — | Maryland |
| 69 | Ralph S. Ellis | 20 | Son | — | Maryland |
| 70 | Sarah M. Ellis | 18 | Daughter | — | Maryland |
| 71 | Fred S. Pruitt | 51 | Head | — | Maryland |
| 72 | Daisy A. Pruitt | 46 | Wife | — | Maryland |
| 73 | Sadie L. Pruitt | 21 | Daughter | — | Maryland |
| 74 | Emma V. Pruitt | 19 | Daughter | — | Maryland |
| 75 | Sarah M. Pruitt | 17 | Daughter | — | Maryland |
| 76 | Alice E. Pruitt | 15 | Daughter | — | Maryland |
| 77 | Lottie E. Pruitt | 13 | Daughter | — | Maryland |
| 78 | Mary M. Pruitt | 11 | Daughter | — | Maryland |
| 79 | Milton Bailey | 48 | Head | — | Maryland |
| 80 | Eva S. Bailey | 43 | Wife | — | Maryland |
| 81 | Amelia Bailey | 10 | Daughter | — | Maryland |
| 82 | Peter Pruitt | 53 | Head | — | Maryland |
| 83 | Sarah E. Pruitt | 50 | Wife | — | Maryland |
| 84 | William E. Pruitt | 23 | Son | — | Maryland |
| 85 | Lula E. Pruitt | 21 | Daughter | — | Maryland |
| 86 | Isaac Pruitt | 19 | Son | — | Maryland |
| 87 | Arthur M. Ennals | 51 | Head | — | Maryland |
| 88 | Sallie A. Ennals | 53 | Wife | — | Maryland |
| 89 | Philip H. Ennals | 18 | Son | — | Maryland |
| 90 | Cora L. Ennals | 15 | Daughter | — | Maryland |
| 91 | Isaac Ennals | 15 | Nephew | — | Maryland |
| 92 | William Keeney | 28 | Head | Laborer | Maryland |
| 93 | Sophia Keeney | 25 | Daughter | — | Maryland |
| 94 | William J. Keeney | 5 | Son | — | Maryland |
| 95 | Not Named Keeney | 0 | Son | — | Maryland |
| 96 | Samuel Stain | 28 | Head | — | Maryland |
| 97 | Gladys Stain | 26 | Wife | — | Maryland |
| 98 | Clara Adline Stain | 10 | Daughter | — | Maryland |
| 99 | Alfred H. Keene | 55 | Head | Laborer | Maryland |
| 100 | Mary E. Keene | 50 | Wife | — | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)